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    • 5. 发明申请
    • Subminature imaging optical system
    • 超小型成像光学系统
    • US20090040626A1
    • 2009-02-12
    • US12222519
    • 2008-08-11
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • G02B13/18
    • G02B13/18
    • There is provided a subminiature imaging optical system subminiature imaging optical system including: a first lens element having a convex object-side surface; a second lens element having an object-side surface in contact with an image-side surface of the first lens element; and a third lens element having an object-side surface in contact with an image-side surface of the second lens element, wherein the object-side surface of the first lens element and an image-side surface of the third lens element are aspherical, and the third lens element has a point of inflection formed within an effective aperture thereof such that the image-side surface is convexed toward an image plane at a central portion to have positive refractive power and concaved toward the image plane at a peripheral portion to have negative refractive power.
    • 提供了一种超小型成像光学系统超小型成像光学系统,包括:具有凸形物体侧表面的第一透镜元件; 第二透镜元件,其具有与第一透镜元件的图像侧表面接触的物体侧表面; 以及第三透镜元件,其具有与所述第二透镜元件的像侧表面接触的物体侧表面,其中所述第一透镜元件的物体侧表面和所述第三透镜元件的像侧表面是非球面的, 并且第三透镜元件具有在其有效孔径内形成的拐点,使得图像侧表面朝向中心部分处的图像平面凸起以具有正折光力并且在周边部分处朝向像平面凹陷以具有 负屈光力。
    • 6. 发明授权
    • Optical system
    • 光学系统
    • US07764445B2
    • 2010-07-27
    • US12076011
    • 2008-03-12
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • G02B9/06G02B9/00
    • G02B13/006G02B9/10G02B9/28G02B13/003
    • An optical system is mounted in a mobile communication terminal and a personal digital assistant (PDA) for a monitoring camera and a digital camera. The optical system includes: a first optical element formed in a meniscus shape entirely convex toward an object and having a positive refractive power; and a second optical element having an object-side surface convex toward the object and an image-side surface formed of a plane, wherein the second optical element includes: a fourth optical element having an object-side surface entirety convex toward the object on the optical axis; and a fifth optical element having an object-side surface in contact with an image-side surface of the fourth optical element, and an image-side surface and an object-side surface formed of planes respectively.
    • 光学系统安装在用于监视摄像机和数字照相机的移动通信终端和个人数字助理(PDA)中。 光学系统包括:第一光学元件,其形成为朝向物体完全凸起并具有正折射光焦度的弯月形状; 以及第二光学元件,其具有朝向物体的物体侧表面凸起,以及由平面形成的像侧表面,其中所述第二光学元件包括:第四光学元件,其具有朝向所述物体的所述物体的整个凸面 光轴; 以及具有与第四光学元件的图像侧表面接触的物体侧表面的第五光学元件和分别由平面形成的图像侧表面和物体侧表面。
    • 9. 发明授权
    • Subminiature imaging optical system
    • 超小型成像光学系统
    • US07876511B2
    • 2011-01-25
    • US12222519
    • 2008-08-11
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • G02B9/00G02B13/18
    • G02B13/18
    • There is provided an imaging optical system including: a first lens element having a convex object-side surface; a second lens element having an object-side planar surface in contact with an image-side surface of the first lens element and an image-side planar surface; and a third lens element having an object-side surface in contact with an image-side surface of the second lens element, wherein the object-side surface of the first lens element and an image-side surface of the third lens element are aspherical, and the third lens element has a point of inflection formed within an effective aperture thereof such that the image-side surface is convexed toward an image plane at a central portion to have positive refractive power and concaved toward the image plane at a peripheral portion to have negative refractive power.
    • 提供了一种成像光学系统,包括:第一透镜元件,具有凸形物体侧表面; 第二透镜元件,其具有与第一透镜元件的像侧表面接触的物体侧平面和图像侧平面; 以及第三透镜元件,其具有与所述第二透镜元件的像侧表面接触的物体侧表面,其中所述第一透镜元件的物体侧表面和所述第三透镜元件的像侧表面是非球面的, 并且第三透镜元件具有在其有效孔径内形成的拐点,使得图像侧表面朝向中心部分处的图像平面凸起以具有正折光力并且在周边部分处朝向像平面凹陷以具有 负屈光力。